公开(公告)号：US06856162B1

公开(公告)日：2005-02-15

申请号：US10777459

申请日：2004-02-12

申请人： James Martin Greatorex ,  Jeffrey Miles Greatorex

发明人： James Martin Greatorex ,  Jeffrey Miles Greatorex

IPC分类号： G01R15/12 ,  G01R31/00 ,  G01R31/40 ,  G01R31/34

CPC分类号： G01R15/125 ,  G01R31/008 ,  G01R31/40 ,  H02S50/00

摘要： A combined AC/DC monitoring system simultaneously monitors an AC power supply and a DC power supply in a mobile unit. The monitoring system is electrically isolated from an AC input source through an AC isolation transformer. A microcontroller digitally provides various computed variables from various digitized input signals. The monitoring system simultaneously displays a plurality of the computed variables while the system monitors for various user-selected high/low conditions of the computed variables. The system monitors AC power surges and can alternately displays a high voltage level for a predetermined time and a low voltage level for a predetermined time. An algorithm determines whether the AC voltage is a true sine wave or otherwise. The system monitors DC current on the high side, or positive terminal, of a battery. User selectable DC shunts are provided to measure a range of DC currents.

摘要翻译： 组合的AC / DC监控系统同时监视移动单元中的交流电源和直流电源。 监控系统通过交流隔离变压器与交流输入源电隔离。 微控制器从各种数字化输入信号数字地提供各种计算的变量。 监视系统同时显示多个计算的变量，同时系统监视计算变量的各种用户选择的高/低条件。 该系统监视交流电源浪涌，并且可以在预定时间内交替地在预定时间和低电压电平下显示高电压电平。 算法确定AC电压是真正的正弦波还是其他的。 系统监视电池的高端或正极端子上的直流电流。 提供用户选择的直流分流器来测量直流电流的范围。